Apparatus for treating piles



j* zo.

June 7,y 1927. A G HOWETON 1,631,532

APPARATUS FOR TREATING PILES Filed June 25, 1926 4 .Sheets-Sheetl .lune 75,1927. I 1,631,532 A. G. HQ WERTON APPARATUS FOR TREATING PILES Filed June 25,A 1926 4 sheets-sheet 2 mgm@ 3 uvam/(oz l imiil Jun 7 1927.

.e A. G. HowERToN APPARATUS FOR TREATING PILES Filed June 25, 192e 4 sheets-sheet 3 5&7, Strane? a June 7, 1927.

A G HOWERTON APRARATUS FOR T'REATING PILES Filed June 25, 1926 4 Sheets-Sheet 4 unirse .srfATlLSlVV f Aivnrrnw nourrisson, or irrita/irmaA TENNESSEE.

Arran-.Atrus non Application mea rune 25,

This yinvention relates to', an improved i method of and apparatus for-treating piles f with creosot'e andhas as its general object to provide means whereby such treatment may "5 be effected .more economically and in a' more thoroughnianuer than by the present methods and'apparatuses. t l

It is well known that there is no necessity for creosotng the portionsof pilesvwhich 'v lo are driven into the ground or submerged in' ,water and which portions are consequently not vexposed to the atmosphere, and y.et so far as I am aware, every apparatus `pre-` viously designed for Vthispurpose is so confv as require to be so treated, thereby effectingV a great'savingin creosot'e. v

Another object'of` he invention is to provide, in apparatus for treating` piles with creo'sote, means whereby the creosote may be recoveredafter the several steps of the process have been carried out, thus further economizing in the use of this substance.A

A further object of thev invention is vto provide means whereby the piles to be treat-v ed may be first subjected to the action of 35 steam under pressure so as to effect a `desired swelling or vexpansion of the cells of the wood. means whereby thepiles maythen be subjected to vacuum to effect evacuation of the pores lof the cells of thewood, and means whereby the piles may then be impregnated with creosote throirghout such portions of their length as require suclrtreatment, so that a. thorough impregnation of the piles by the creosote is effected; f-

In the accompanying drawings: y Figurel is a view in side elevation of the apparatus embodying the'invention, the pile containing cylinder being illustrated in hori'-, Zontal position and in position to permit o'f the introduction of the piles ther'einto7 the i said cylinder, in' the said view, being shown j in dotted lines in uprightposition and which position it will assume'when the piles are ofthe invention.

being treated in accordance with the method Y l Y are secured in anyfsuitable n ianner,V as for rar-:Arrive Prins 192e, serial no. 113,543. i

Figure '2; is a topplan r-atus. f

view" of' the appa.V A

Figure 3 isa horizontalsectional view `on` an .enlarged scale through the pile-receiving. cylinder of the apparatus. y

Figure 4 is a vertical transverse sectional., view taken substantially onthje line effe-.of

Figure 8, looking in the direction indicated by the arrows. f w Q .Figure 5 is an enlarged horizontal. sectional v-iew takensubstantia-lly on the line 5,--5 of Figairet, looking in the directionin'- 1 dicated by the arrows. i Figure 6 isa horizontal sectionalview in detail, taken substantially on the line 6?-,6

of Figure 3, looking in the direction indi-- cated by the arrows. Y y

Figure 7 `is a View in elevation of the receivingendv of the cylinder of the apparatus and illustrating the door for closing thisend of the cylinder after the pileshave'been introduced thereintofV I 4Figure 8 is a detail vertical sectional view taken substantially on the line 8-8 of Figure 7, look-ing in the direction indicated by lthe arrows.

Figure` 9 kis a view side elevation `cfa vbrake which constitutes a partofthe app'af ratus. .t Figure 10 vis a schematic View yof the apparatus. c

An `'essential partjof the` apparatus enri-V Y bodyingthe invention is V the-cliamber into which the piles to be treatedfare introduced. and this chamber, which is indicated infgenl eralbythe num-eral livcomprisesa cylinder 2 which is of sufficient diametertojaccommo# date trucks and anumbergofpiles'which-are loaded thereon vand-is of 'al length preferably slightly greater than .the longest .piles which` will be treated. This cylinder may be; of heavy sheet iron or cast, an'ditgis preferably reenforced throughout its length.. byl anexterior ftrussed'y fraine` structure indicated by the numeral 3,' lwhich may be of any suitable construction and therefore, need'not be speci'ically described. At one end,H the cylinder 2 is permanently closed by a head 4 and at its yopposite end it is provided with a cyline der head 5 which will presently be 'specifi` cally described and which ismovabl'eiinto' and out of position toyclose the said` end of the cylinder `in al iiuidftight manner. [The numeralindicatesv two bevel gears` which y y example to a base plate 7, to the traine structure 3 at the opposite sides ot the cylinder 2, and, in the embodiment oit theinvention shown in the drawings, trunnions .8 are either, fixed in the hubs ot the lgears or formed integrally therewith and are mount-v ed in suitable bearings 9 which areniounted upon pillow blocks 10 ,at the opposite sides of a pit 11 provided in a concrete or similamy foundationzl2 upon which the apparatus is erected." fluA this manner, theA cylinderis mounted so that itin-ay be caused to assume rthe horizontalposition shown'in' t'ull lines in 'Figure-1 ojt'the drawings, ortho vertical vposition shown Vin dotted lines in the sani figure," `and the purpose vot' thus mounting thecylinder willl presently be 'inadecleaix Thef pit 11 is'oi' dimensions to acconiin`oi date the lower portion ol the cylinder when theV cylin'deris swung to upright position, and the bottom of. 'the Vpit and that wall thereof opposite which the closed end ol the "cylinder will move when the cylinder kis reterabl flot the arcuate 'form shown inV P 5 Figure 1, anda Vrail 13 is laid' upon the said VVbottom and the said wall ot the pit and is arcuate and concentric to the trunnionsvS, and'serves to guide the closed 'end oi" the cylinder and likewise serres another`1 V purpose'tobe presently explained. l

In'the embodiment or"v the invention disclosed herein, the means provided for ettecb ing adjustment of the cylinder about itsaxis of rotation'include's' a steam engine '1d 'of orV dinaryfconst'ruction having the usual4 crank connect-ionA 15 with fashaft 16Y carrying,V a gearl'whicli: meshes with a gear 1S upon a shaft 19 mounted uponthe foundation above the pit, this portion 01' the foundation which is indicated by the immoral 20, being` built up above the pit'l to support not only the engine ltand the' mechanism which will now o be described. butalso other units ofthe ap paratus which will 'be hereinatterreferred to in more det-ail. The `freer 18 is adapted n to be connected Awith the shat't 19 'tor rota- I' beveled gears 26S-'meshing' with the respective Vgears 6. VAt this point it willb'e evident that when one of the clutches 23 is thrown to `clutch therespective `gear 22 with the shaft 19, rotary motion' will be imparted to thecorresponding shaft 25 and, throughy the medi'- um of the gear 6, the cylinder will beswung Afrom its 'horizontal to itsvertical position,

shown in' Figure 1, and when the other clutch is thrown, the lirst mentioned clutch being idle, the cylinder, will be reverscly swung. rlhe numeral :27 indicates a steamA boiler ot ordinary construction, and steam is supplied from'. this boiler through a, supply pipev 2S, to the engine 1d and maybe controlled by the ordinary. throttle valve (not shown) .associated with such enginesl As will presently be explained, the boiler serves As previously indicated, thepiles to be treated are introduced into the cyllnderon also as" afsource ot steam supply for other purposes. Y

truclisfwhich are indicated in the drawings Y by the numeral 29 and which travel upon track rails 30 leading to and in -alinement with the open end of thecylinder rwhen the cylinder is in horizontal position, as clearly shown in` Figures 1 and 2 of the drawings, the pilesl being, ,of course, loaded upon theV truclsat any place however remote 'trom the apparatus and conveyed by the trucks to the apparatus. A"ilhilethe' construction ot the trucks is immaterial so tar as the general .invention is concerned, they are preferablyY provided with pile-supporting,- and embrad ing frames 31 of the general arcuate form shown in Figure 'il' of the 'drawings so tha' a number ot'piles leaded onto the trucks will be arranged in amore or less roundedpile f adiipting.;` tliewholel 'number VtoV readily enter the c *linde/r. Chains 32' arel ,relieralolv connected each to one end of' the resnectiw f trame and jack hooks 133 are mountedat thc other end ofthe trameand 'areselectively engageable with the linksrzot the respective chains so 'that :the Vpilesl may -be securely bound intheir piled 'up arrangement.A Asbe-V iiore stated, the track rails 30 lead tothe open ltlfi,

endv .of the cylinder in the lhorizontal "posi-V tion. of' the latter, and' sin'iilar railsV Sil are laid uponv longitudinalv sills supported within the bottom of the cylinder 2.' rlvhe piles -are so loaded upon the'truclrs that when the trucks arerolled along-the'rails in introducingthe piles into ythe cylinder, lie piles will be presented butt end first to the openfend ot the cylinder, this rbeing` the end of a pile which requiresl impregnation with` creosote or :other preserrative V agents. will befunderstood at this point, 'that inasmuch as the method ot' the invention centena plates adjustment et the cylinder to a' vertical position, the butt ends ot'thepigles will be lowermost when the cylinder is upright. and inv order thatthe trucks 29' may be held to 'the railst while the cylinder is beine'V adjustedV or vswung,^the pile' supporting` framesl oil the trucks are provided'with laterally projecting ,guards 36 having' upturned ends''` engagingv behind flanges'p38V extendingdownwardly from guiderails lao i j ranged within the cylinderand which is lin-l cheated in` general bythe numeral 40. This which, are mounted :upon the inner sideof the cylinderQ at the opposite sides thereof, as clearly shown in Figure't, and these'rails ,are-so located, as are` alsothe guards 36, as to Vclosed cylinder head and when thepiles loaded -upon the trucks 29, are in reduced into the cylinder, the buttvends ot' the piles will engage a false bottom which is arfalse bottoni may be of any desiredand suitable construction but preferably comprises I-beams el which are mounted horizontally within the cylinder 2 andeXtend-across the interior of the same and aresecured at their ends to the wall ofV the cylinder at opposite sidesthereof, other beams Ll2' being arranged verticallywithin the cylinder and parallell to eachother and intersecting the beams 41j lVooden beams or sills 43 are mounted by. U-bolts dfi upon the beams 41 and are ar#v ranged in spaced parallel relation prefen ably in a vertical position, and it is against `li'ese beams that the butt ends ot" the piles en- I gage. It will nowbe evident that When the cylinder isswung ii'oinliorizontal to vertical position, thc butt ends oii'the piles to beY treated will 'rest against the 4false bottoni structure and thus besiupportedy in spaced relation to' the headd ofA the cylinder.

In a manner to be presently explained,

' creosote or other `preservative agent is tol be introchicedrinto the cylinder to impregnate the piles, and in order that tliepreservative agent may be heated. a'steamcoil 451 is arranged within the cylinder between the head et thereof and the false bottom 40, and one end` ot' the coil is led through the side of' the cylinder and has appliedtliereto a. pressure yalye i6, a Vsupply pipe47wbeing connected to tho other end of the coil and led along the bottom ofthe cylinderinteriorly tliereotA to a point adjacent the axis ot'frotation ot lthe cylinder where the pipe'isjled laterally, as at 48, and up'waidly'and thence through the'wal'i of the cylinder .and beyond the r'traine structure 3 where't.liere is connected to ita flexible high.pressurei hose i9 leading to the casing of a manually operable cuteoti' valve 50 to which casing there is also connected asupply `pipe 51 leading from the steam boiler 27. Under conditions to be il'ircsently described, steaniis likewise t0 be supi'ilied the interior of the cylinder, and

tor this purposea steam pipe 52 is arranged.

in the bottoni' or' lowersideof the cylinder lclose to the head fl ot the cylinder and its vthe foundation 20.` Thenumeral 71 Aindicates an -oil 'pump which may be operated pipe 7?) isindicated by the numeral 76 andA pipe cylinder to 'substantially Lthe open end there-y of. This pipevis, at its intake `end, led laterally as YAat 'and through the side of the cylinder and has connected to it a high pressure'eaible hose 54` which is` connected' at its otherend to the casingot a-nianually operable cut-ott fyalve'" with which the steam `supply pipe 5l isy in communication. The Valves-5() and 55 are supported `in any suitable manner, as for exaiiiplefas shown in Figure 4; oi the drawings, together 'with other Valves to be presently described, and at this pointit will be evident that by pro'- viding the iieXible hose 4connections and art ranging the valves vsubstantially"in aline- 30 ment with the axis of rotation ofthe rCyliiider, as illustrated in Figures 2 and ve, there is no interference with the `flow of steam when thecylinder is swingingly adjusted.

-In order'that creosote or other preserva! tive fluid substance may be introduced into the cylinder-2 to impregn'alte the piles, a pipe 56 .is laid. longitudinally between the track rails 34 and has one endopcning relatively opposite end portion 57 turned laterally and y extended through the wall of the cylinder, a flexible hose 58 beingcoiinected to fthe last mentioned end of the pipe `and tothe casing oi a manually operable cuteotl-valve 59er- 95 ranged, for example besidetheyalve 50. YA. pipe 60 leads from the said valve 59 tofan oil heating and storage tank mountedupon by. a steam turbine :72 supplied-,with steam through the pipe 28 or a branch thereof, and

a pipe 73 is led fronifthe oil pump 71 atene side thereof, and coupled to the pipe .(30.y

AQ pipe is led'i'frointhe other [sideof the V105 pump 7l to the top fof-the oil heating and storage tank `70, ,and a manually operable ciit-oifvalve 75 is interposed in the saidpipe, The coupling between the pipes 60 andthe it likewise serves `to couple'to the pipe 60 a 77 which' lea'dsfiroin` the bottom lory lower portion vot' the tank 70, afvalye 7S being intcrposcdin'the length of thesaid pipe 77 Vbetween the tank and the coupling. l The numeral -79 indicates a reservoirtor` the creosote or other preservative, and a pipe 80 isled from the reservoirto the coupling 7G and has aimanually operable cut-oiiyalve Si' interposed in its length.L Y Y t Vrl `hefniimeral S2 indicates a:con-yertibleair pressure and suction pump which may be' l operated bya steam turbine S3 supplied with ,steam from thepipe 28, and apipev 84 isled from one side of thepump to the topo'ic the '15357 oil-v heating aiid. storagetank 70 aQpipe 85 being led rointhe other side'ot the ,pump l toene side of the casing ot amanually operable,cutfoityalve 86 arranged, v'for example,

between -theyalvos 50 and; 55..,Afl'lexible v hoseS? leads from the other side ot the castion pipe indicated the numeral 89, the

saidhranch oi the pipe liieing'led through the side oit the cylinder bet-Ween the pipes 4:8

' and 53 and the pipe 89 being extended longitudinally between the track rails 51 'from its said branch 8S to a point relatively close to the receiving end ot the cylinder. In order that the siif'inging inoven'ientot the cylinder may be retarded yas it approaches itshorizontal vand vertical posit-ions, thereby avoid'- ing injury tothe mechanism, braking mech anism is preferably provided and comprises a. brake drum 90 which is lined upon one oi the trunnions8,and brake shoes 91 and 92 are arranged at opposite 4sides of the drum to have trictional contact therewith and are connected at their upperends by a link 93. The lower end oit the shoe 91 is pii'fotally connected to a pivot bolt 94 uponV a support ing bracket 95 and alinli 0G is pivotally con. nec-ted at one end'ivith the lower end oit the brake shoe 92 and at its other end to a rocker 97 Whichis suspended from-the saidr pivot bolt 9a. A connecting rod 98 is connected to the lower end of Vthe rocker and to theY rod '99 oi a Ipiston 100 working in a rake cylinder 101 into one end ot which is led an' air vsupply pipe 102 leading trom andconstituting a .brenchotf Vthe pipe j which, as previously explained.'A is led iiomthe air pump 82,3113 being evident', by reference to Figure ot the cravvings, that when air is admitted tothe cylindeilltl behind'the piston 100, the shoes 01; and will be caused to bind the drum S0 and thus retard the Y swinging movement ot the cylinder.

ln order ythat thereceiving end ot the cylinder may be closed in a fluid-tight man-A ner, a. closure head 103 is mounted by hinges .1041 upon thetrussed frame structure 3 at the Vopen end et the cylinder vand an annular seating member 105is uecuredwithin thereceiving end ot the cylinder andsupports a packing gasket 106 against 'which the inner side oi the closure 103lis designed to seat when the closure is swung to closed position,l

:is-clearly shown in liigure -8 ot the draivf ings; Vrlhe closure is provided withY a cir- Vcuintfei'ential outstanding `flange 107 having notches 10S in its periphery, and a circum- `scril'iing flange 100 'secured upon the exterior of the cylinder 2 at the said end thereot and isprovi'ded With similar notches 110. Bolts 111 are disposed Within the notches Y 108 and`110 ot the closure and flange 109 respectively, and are adapted to be tightened, ai r the closure has been swung to closed positiomso as to s curelj seal the receiving endet the cylinder. i Y Y As previously stated, vthe piles are to be impregnated'with creosote or other preserve' ative for only a predetermined portion of tlieirlength and in order that the level of ily ascertained, a pluralityof gauges '112 are mounted upon that .side ,of ythe cylinderV which is uppermostivhen thecylinder isiu horizontalposition and are spacedv different distances from the permanently closed endot the cylinder. In order that the 'cylinder maybe steadied in its movement about its supporting AtrimMV nions, an arcuate rail 1.13 is mounted upon the :urved bottom ol y'the pit 11, and spaced guides 11st are securedupon .the outer side ot the head 11 otthecylinder and straddle the said rail.

of air under pressureif'the pressu'reshould reach an abnormal degree. n An air r'pressure gauge `119 is preferably associated with the air pump 82.

-. ln order, that Water of condensation' may, bedrained from ythe :cylinder from time to time, as occasion may require, adrain valve 120,is arranged in thatrsidefot the cylinder' which is the under sideY Whenthe cylinder is in horizontal position.

" 'In order that the supply otcoinpressed air to the air brake cylinder 101 may be controlled, a manually operable cut-Voli'1 valve V1F21 is interposedintlie pipe 102.V

The operation of the apparatus .is as tolloivs:

The piles to .be treated are .loaded onto thetrucks 29 and the chainsBQ are drawn over the loaded piles and engaged with the jack hooks 33 which are tlienoperated to tighten the chains and the jaclrsare then locked. The cylinder at thistjiine is in hori- Zontal position and the trucks are moved along the rails 30 and the pilesthus introduced into thefcylinder until rtheir butt ends engage the false bottom 40 ot' the cylinder, whereupon the closure 103 is swung Vto closed position and securely bolted inplace. The valve 55 is noivfopened Vand `steam is permitted to lloiv under. pressure into the cylinder from the boiler 27 and through the pipe 52. `The supply o1 steamfris'v maintainedtor the required period ottime and during the steamingl operation the Water yot condensationmaybe drawn oi'i' by Way The rail is'preterably'pro- 'vided with ajrach A115 with which meshes a gear 116 driven from van electric motor 117.," so that this arraiigement-inay be resorted toy -theimpregnating preservative may be readfio storage tanl; throughv the medium of the.y

oil pump T2, and the oill in 'the tank isheated to the required Ateii'ipeiattre.. rilie cylinder is noiv. adjusted'to the vertical position and oil is introduced into the cylinder from the storage tanlr TO' by Way ofthe pipe Zei eitherv by' openingl the valves 59 and TSand introducing air under pressure' into the tanlr through the lmedium ofthe air pump 82,01'

by;V gravity, untilthe creosote or :oil has ieaeiid; the desired level, which may leefdeteriiiined by reference to lthe oil gauges i12. The supply of'oilis` then cut off'and the valveSi'i is Vopened and air under pressure delivered intotlie .upper end ofthe cyliiider through the lpipe 89 until the desired press-ur is iegistered upon thegauge 11.9. fn practice, the safety valve 118 will he set Y or adjusted 'to open at a higher pressure than the maximum desired pressure. In the f meantime, rthe supply of steam to the heating coil i5 has beencoiitinued, and this supply and the supply of compressed air are .maintained, oil being supplied to the cylinder to maintain the proper level until it is-noted that the level remains constant Without sup-v plyiiig more oil which, of course, indicates that the piles .have become thoroughly impregnated with the preservative. Theair pumpy and oil pump are then cut out 'of operation and the air in the cylinder is per- "initted to escape and the steam is turned off piles upon the trucks are Withdrawn from. the cylinder and the piles removed from they from the heating coil. The oil in the cylinn der is then returned to the tank either by introducing air under pressure into they 'upper end 1of the cylinder or through the operation of the oil pump. After all of the preservative has been discharged from the cylinder` and returned to thel tank'70, the

cylinder is restored to itshorizontal posi tion, the closure 5 is opened, and the treated trucks. Y

Having thus described the invention, `what VI claim is:

1.1n apparatus for iinpregnating piles with a preservative, a foundation therefor 'including a pit, a cylinder for receiving the piles to be impregnated, means ,supporting the cylinder for adjustment to horizontal and upright position, means for adjusting the cylinder, cooperative means on the cylinder and in the pitl for guiding the cylinder Aduring its movement of adjustment, means for supplying preservative to thecylinder, means for supplyingsteam. to lthe cylinder, andnsingleinean-s for selectively .supplying airunder pressureto the eylinderiand-ex-A hausting airtherefrom. y Y,

lnapparatus for ii'npregnating piles livitha preservative, a' cylinder for receiving the lpilesto beiinpregnatedand; closed at-oiie end, Ymeans for closingtheY other' end ofl the cylinder, false bottomivithin the cylinder-iipon which they ends of .the piles rest, means ysupporting the 'cylinder' for iadjustment tohorizoiitlal aiidnpright. position, means for iadj ustiiig the cylinder, means *'.for supplying y preservative to.` the cylinder, a,

steam heating coil in, thecylinde'r between the closed end thereof and theifa'lse bottom,

meansforsupplying steam tothe said coil, Y means for, supplying: steanr to the j interior.

of the cylindernear the- .second "mentioned -end thereof, and singlemeans "for selectively soV supplying air under pressure to the cylinder. s f

and exhausting. air therefrom.

lnf apparatus for inipregiiating piles ivith a preservative, a cylinder for receiving the piles to belimpregnated, thecylin'der befl Y ing closed at vone end, means-'forelosing the other end of the cylinder, means supporting the cylinderlbetiveen its lends for adjust mentv to horizontal andV upright position, means for adjustingthe cylinder, means for supplying preservative to the cylinder near the i'irst mentioned end thereof, a false bot# tom Within the cylinder spaced from the first `mentioned end thereof a steaml heatiiior coil within the cylinder lbetween the4 false bottom and the said closed end'of the'cylinder,

means Yfor supplying steam to the said coil, means for supplying steam to the cylinder near the second mentioned end thereof, and

single means for selectively supplying air under pressure to the cylinder and exhaust-` ing air therefrom.

4. n apparatus for impregnating piles with a preservative, a cylinder for receiving the piles to'be impregnated, means supporting the cylinder for adjustment to horizonvtal and upright position,-1neans for .adjust-A ing the cylinder, a container for preserva-- 't-ive, means for conduct-ing preservative from`v the Vcontainer to the cylinder including apipe opening into the cylindernear one end v thereof, vthe said end'ofthe-'cylinder being.

closed and being the lowermost end When r the cylinder is'upright, means for supplying steam to the cylinder near the'other end thereof, means for closing` thelast mentioned i end of the cylinder, and single' means for selectively supplying air under pressure to the cylinder and exliaustingair therefromincluding` fa pipe communicating with the cylinder 'near the last mentioned end thereof. 5.I In apparatus for impregnating piles with apreservative, Y a` cylinder for receiving the piles to be'impregnated, means 'support-' ias y ing the cylinder for adjustment tov horizontal and upright, position, means for adjusting the cylinder, the cylinder being closed at one end, means for'closing the other end of the cylinderfa false bottom Within the cylinder spaced from the first mentioned end thereof, ad steam heating coil. Withinl the cylindervbetween the said false bottom and the, said first ,mentioned end of the cylinder, means for supplying steam to the said coil,

means fonsnpplying steam tothe interiorl Y of the cylinderincluding a steam conducting pipeopenmg into rthe-cylin'dernear the second mentioned end thereof, andsingle means for supplying airj under pressure to the cyl inder and for exhausting air therefrom including a pipe opening into the cylinder n near the second mentioned end thereof.

6. In v apparatus for impregnating piles with a preservative, a cylinder for receiving the pilesjto be impregnated, means supporting. the lcylinder for adjustment to horizon* tal and upright position, means'for adjusting the cylinder, the cylinderbeing closed vat-oneen'd, means for closing the other end of the cylinder, a reservoir forthe preserva-* tive, a pipe :leading from the lower portion of the reservoir for conducting preservative therefrom, a pipe Within the cylinder in communication with the first mentioned pipe end thereof,vmeans for supplying air under pressure to the upper Yport] on of the reservoir and single meansv communicating with the 30 y and opening into the cylinderfnear the. closed j herizontal rand upright position, rails 'ex-v tending` longitudin'allyY Within thefcylinder, and upon `which are guided the Wheels of a truck supporting` piles to be impregnated,

and cooperative means carried bythe truck.

and cylinder for maintaining truck Wheels In testimony whereof I'aflixmy signature Y ANDREW e. HoWERToN. [L Sgj lupon the rails when` the Cylinder is upright. j i 

